WASET
    R. Kenova and  K. Anguelov and  R. Nikolova,  Research of the Factors Affecting the Administrative Capacity of Enterprises in the Logistic Sector of Bulgaria.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2019, vol. 150(6). 826 - 832
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10010460.